US11029498B2 - Single-focal lens system, imaging device having single-focal lens system, and moving body having imaging device - Google Patents

Single-focal lens system, imaging device having single-focal lens system, and moving body having imaging device Download PDF

Info

Publication number
US11029498B2
US11029498B2 US16/483,187 US201816483187A US11029498B2 US 11029498 B2 US11029498 B2 US 11029498B2 US 201816483187 A US201816483187 A US 201816483187A US 11029498 B2 US11029498 B2 US 11029498B2
Authority
US
United States
Prior art keywords
lens
focal
lens element
lens group
condition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US16/483,187
Other languages
English (en)
Other versions
US20190361207A1 (en
Inventor
Tsutomu Iwashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of US20190361207A1 publication Critical patent/US20190361207A1/en
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IWASHITA, TSUTOMU
Application granted granted Critical
Publication of US11029498B2 publication Critical patent/US11029498B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/04—Reversed telephoto objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/60—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having five components only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration

Definitions

  • the present disclosure relates to a single-focal lens system, an imaging device having the single-focal lens system, and a moving body having the imaging device.
  • PTL 1 discloses a single-focal lens system including a first lens serving as a negative lens, a second lens serving as a meniscus lens whose convex surface is directed to an image, a diaphragm, a third lens serving as a positive lens, a fourth lens serving as a positive lens, and a fifth lens serving as a positive lens, which are disposed in this order from an object side to an image side.
  • a single-focal lens system includes a first lens group having positive power, an aperture diaphragm, and a second lens group having positive power.
  • the first lens group includes a first lens element having negative power, a second lens element having negative power, and a third lens element having positive power in this order from an object side to an image side.
  • the second lens group includes a fourth lens element having power and a fifth lens element having positive power.
  • fG1 is a focal length of the first lens group at a d-line
  • fG2 is a focal length of the second lens group at the d-line
  • f4 is a focal length of the fourth lens element at the d-line
  • f is a focal length of an entire system at the d-line
  • w is a half angle of view
  • a condition (1), a condition (3c) and a condition (6) shown below are satisfied.
  • the present disclosure provides a single-focal lens system that is excellent in various aberrations.
  • FIG. 1 is a lens arrangement diagram of a single-focal lens system according to a first exemplary embodiment.
  • FIG. 2 is a longitudinal aberration diagram in an infinity focusing state according to a first numerical example of the first exemplary embodiment.
  • FIG. 3 is a lens arrangement diagram of a single-focal lens system according to a second exemplary embodiment.
  • FIG. 4 is a longitudinal aberration diagram in an infinity focusing state according to a second numerical example of the second exemplary embodiment.
  • FIG. 5 is a lens arrangement diagram of a single-focal lens system according to a third exemplary embodiment.
  • FIG. 6 is a longitudinal aberration diagram in an infinity focusing state according to a third numerical example of the third exemplary embodiment.
  • FIG. 7 is a schematic configuration diagram of an imaging device according to a fourth exemplary embodiment.
  • FIG. 8 is a schematic configuration diagram of a moving body on which the imaging device according to the fourth exemplary embodiment is mounted.
  • FIG. 9 is a schematic configuration diagram of a moving body on which an imaging device according to another exemplary embodiment is mounted.
  • a lens group means a group configured with one or more lens elements. Power, a composite focal length, and the like of each lens group are determined depending on kinds, a number, and an arrangement of the lens elements constituting each lens group.
  • FIG. 1 , FIG. 3 , and FIG. 5 are lens arrangement diagrams of single-focal lens systems according to the exemplary embodiments. Note that each of FIG. 1 , FIG. 3 , and FIG. 5 illustrates a lens arrangement of the single-focal lens system in an infinity focusing state.
  • an asterisk “f” attached to a certain surface shows that the surface is aspherical.
  • symbol (+) or symbol ( ⁇ ) attached to a sign of each lens group corresponds to a sign of power of each lens group. That is, symbol (+) indicates positive power, and symbol ( ⁇ ) indicates negative power.
  • a straight line drawn at a rightmost side indicates a position of image surface S (corresponding to a position at which an imaging element to be described later is disposed). Note that aspect ratios of FIG. 1 , FIG. 3 , FIG. 5 , and FIG. 7 are the same.
  • a single-focal lens system according to a first exemplary embodiment will be described below with reference to FIG. 1 .
  • FIG. 1 is a lens arrangement diagram of the single-focal lens system according to the first exemplary embodiment.
  • the single-focal lens system according to the first exemplary embodiment includes, for example, first lens group G 1 having positive power, aperture diaphragm A, second lens group G 2 having positive power, and parallel plate P in this order from an object side to an image side.
  • first lens group G 1 having positive power
  • aperture diaphragm A having positive power
  • second lens group G 2 having positive power
  • parallel plate P in this order from an object side to an image side.
  • the object side corresponds to a side of first lens group G 1
  • the image side corresponds to a side of image surface S.
  • First lens group G 1 includes first lens element L 1 having negative power, second lens element L 2 having negative power, and third lens element L 3 having positive power in this order from the object side to the image side.
  • Second lens group G 2 includes fourth lens element L 4 having negative power, and fifth lens element L 5 having positive power in this order from the object side to the image side.
  • First lens element L 1 is a grass lens having a meniscus shape whose convex surface is directed to an object.
  • Second lens element L 2 is a resin lens having a biconcave shape. In second lens element L 2 , concave surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Third lens element L 3 is a grass lens having a biconvex shape.
  • Fourth lens element L 4 is a resin lens having a meniscus shape whose convex surface is directed to image surface S.
  • fourth lens element L 4 both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Fifth lens element L 5 is a resin lens having a biconvex lens shape. In fifth lens element L 5 , both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • the single-focal lens system according to the first exemplary embodiment is thus configured.
  • a single-focal lens system according to a second exemplary embodiment will be described below with reference to FIG. 3 .
  • FIG. 3 is a lens arrangement diagram of the single-focal lens system according to the second exemplary embodiment.
  • the single-focal lens system according to the second exemplary embodiment is configured with, for example, first lens group G 1 having positive power, aperture diaphragm A, second lens group G 2 having positive power, and parallel plate P in this order from an object side to an image side.
  • First lens group G 1 includes first lens element L 1 having negative power, second lens element L 2 having negative power, and third lens element L 3 having positive power in this order from the object side to the image side.
  • Second lens group G 2 includes fourth lens element L 4 having positive power and fifth lens element L 5 having positive power in this order from the object side to the image side.
  • First lens element L 1 is a grass lens having a meniscus shape whose convex surface is directed to an object.
  • Second lens element L 2 is a resin lens having a meniscus shape whose convex surface is directed to image surface S.
  • both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Third lens element L 3 is a grass lens having a biconvex shape.
  • Fourth lens element L 4 is a resin lens having a meniscus shape whose convex surface is directed to image surface S.
  • fourth lens element L 4 both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Fifth lens element L 5 is a resin lens having a biconvex shape. In fifth lens element L 5 , both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • the single-focal lens system according to the second exemplary embodiment is thus configured.
  • a single-focal lens system according to a third exemplary embodiment will be described below with reference to FIG. 5 .
  • FIG. 5 is a lens arrangement diagram of the single-focal lens system according to the third exemplary embodiment.
  • the single-focal lens system according to the third exemplary embodiment is configured with, for example, first lens group G 1 having positive power, aperture diaphragm A, second lens group G 2 having positive power, and parallel plate P in this order from an object side to an image side.
  • First lens group G 1 includes first lens element L 1 having negative power, second lens element L 2 having negative power, and third lens element L 3 having positive power in this order from the object side to the image side.
  • Second lens group G 2 includes fourth lens element L 4 having positive power and fifth lens element L 5 having positive power in this order from the object side to the image side.
  • First lens element L 1 is a grass lens having a meniscus shape whose convex surface is directed to an object.
  • Second lens element L 2 is a resin lens having a meniscus shape whose convex surface is directed to image surface S.
  • both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Third lens element L 3 is a grass lens having a biconvex shape.
  • Fourth lens element L 4 is a resin lens having a meniscus shape whose convex surface is directed to image surface S.
  • fourth lens element L 4 both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • Fifth lens element L 5 is a resin lens having a biconvex shape. In fifth lens element L 5 , both surfaces on the object side and on the side of image surface S have aspherical shapes.
  • the single-focal lens system according to the third exemplary embodiment is thus configured.
  • a plurality of possible conditions are defined to the single-focal lens system according to any one of the first to third exemplary embodiments.
  • a configuration of the single-focal lens system that satisfies all the conditions is most effective.
  • the single-focal lens system is configured with, for example, first lens group G 1 having positive power, aperture diaphragm A, and second lens group G 2 having positive power in this order from an object side to an image side.
  • First lens group G 1 includes first lens element L 1 having negative power, second lens element L 2 having negative power, and third lens element L 3 having positive power in this order from the object side to the image side.
  • Second lens group G 2 includes fourth lens element L 4 having power and fifth lens element L 5 having positive power.
  • the above single-focal lens system desirably satisfies the following condition (1), for example. 0.5 ⁇ fG 1/ fG 2 ⁇ 3.0 (1)
  • fG1 is a focal length of first lens group G 1 at a d-line and fG2 is a focal length of second lens group G 2 at the d-line.
  • first lens group G 1 includes two lens elements each having negative power. This configuration can achieve a single-focal lens system whose entire viewing angle is wider than 100 degrees, for example, while favorably correcting various aberrations.
  • condition (1) defines a relationship between the focal length of first lens group G 1 at the d-line and the focal length of second lens group G 2 at the d-line.
  • the single-focal lens system in the present disclosure desirably satisfies the following condition (2), for example. 5.5 ⁇
  • L4R1 is a radius of curvature on an object side in fourth lens element L 4
  • L4R2 is a radius of curvature on an image side in fourth lens element L 4 .
  • condition (2) defines a ratio of a sum of the radius of curvature on the object side in fourth lens element L 4 and the radius of curvature on the image side in fourth lens element L 4 to a difference between the radius of curvature on the object side in fourth lens element L 4 and the radius of curvature on the image side in fourth lens element L 4 .
  • condition (2) it is more preferable to satisfy any one of the following conditions (2c) and (2d), or both the following conditions (2c) and (2d). 7.0 ⁇
  • the single-focal lens system in the present disclosure desirably satisfies the following condition (3), for example. 10.5 ⁇
  • f4 is a focal length of fourth lens element L 4 at a d-line and f is a focal length of an entire system at the d-line.
  • condition (3) defines a relationship between the focal length of fourth lens element L 4 at the d-line and the focal length of the entire system configuring the single-focal lens system at the d-line.
  • the single-focal lens system in the present disclosure desirably satisfies the following condition (4), for example. 1.7 ⁇ ndL 3 (4)
  • ndL3 is a refractive index of third lens element L 3 at the d-line.
  • condition (4) defines the refractive index of third lens element L 3 at the d-line.
  • the single-focal lens system in the present disclosure desirably satisfies the following condition (5) together with the above-described condition (4), for example. 20 ⁇ vdL 3 (5)
  • vdL3 is an Abbe number of third lens element L 3 at the d-line.
  • condition (5) defines the Abbe number of third lens element L 3 at the d-line.
  • the single-focal lens system in the present disclosure desirably satisfies the following condition (6), for example. 60 ⁇ w (6)
  • w is a half angle of view.
  • the condition (6) is a condition relating to a diagonal half angle of view of the single-focal lens system.
  • the widen angle can be achieved while maintaining excellent optical performance in the single-focal lens system.
  • a surface on the object side of second lens element L 2 desirably has a shape having an inflection point out of the optical axis.
  • This configuration enables preferable aberration correction at both of a portion near the optical axis and a portion out of the optical axis, in second lens element L 2 . Therefore, various aberrations, particularly the image surface curvature is sufficiently corrected. As a result, favorable optical performance is secured in the single-focal lens system.
  • An imaging device which has the single-focal lens system according to the first exemplary embodiment, will be described below with reference to FIG. 7 .
  • the imaging device is exemplified by a camera to be mounted on a moving body that moves with, for example, a vehicle or a person.
  • the imaging device may include any one of the single-focal lens systems according to the second and third exemplary embodiments instead of the single-focal lens system according to the first exemplary embodiment.
  • FIG. 7 is a schematic configuration diagram of a camera according to the fourth exemplary embodiment, which has the single-focal lens system according to the first exemplary embodiment.
  • Camera 100 as an example of the imaging device includes single-focal lens system 201 , imaging element 202 , and parallel plate P, for example.
  • Single-focal lens system 201 forms an optical image of an object.
  • Imaging element 202 converts the optical image formed by single-focal lens system 201 into an electrical image signal.
  • Parallel plate P is configured with a bandpass filter that transmits, for example, only light having wavelengths of a near-infrared region (e.g., light having wavelengths from 800 nm to 1000 nm).
  • Imaging element 202 is disposed at a position of image surface S in the single-focal lens system according to the first exemplary embodiment as illustrated in FIG. 1 .
  • Color filters that receive light having the wavelengths of the near-infrared region are disposed in at least part or all of a plurality of pixels in imaging element 202 , respectively.
  • Camera 100 having single-focal lens system 201 is thus configured.
  • FIG. 8 is a schematic configuration view of the automobile equipped with camera 100 near a rearview mirror inside vehicle 500 .
  • Camera 100 is disposed near the rear-view mirror (not illustrated) inside vehicle 500 , while being directed to an interior.
  • camera 100 is used as a sensing camera that images a driver and a passenger.
  • a light-emitting diode (LED (not illustrated)) having wavelengths of the near infrared region (e.g., wavelengths from 800 nm to 1000 nm) is disposed near the rear-view mirror inside vehicle 500 .
  • the LED emits signal light whose light-emission intensity is modulated toward the interior of vehicle 500 (e.g., toward the driver and the passenger).
  • Camera 100 captures an image of the interior of vehicle 500 as a phase delay of reflection light of the LED.
  • the captured image is used for sensing of postures or states of the driver and the passenger (particularly, the driver), for example.
  • controller 300 first detects, based on the image captured by camera 100 , distances to parts of the driver and the passenger that are the subjects with an area demodulation method, for example. Through this processing, distance image data including information on distances to the subjects can be obtained.
  • controller 300 detects, for example, the state of the driver based on the distance image data thus obtained. Controller 300 determines whether the driver is in a state of possibly causing trouble to driving due to sleepiness or sudden illness, for example. When determining that the driver possibly causes trouble to driving, controller 300 gives the driver a warning. When the trouble to driving is not eliminated, controller 300 automatically stops vehicle 500 . This operation secures safety of the driver and the passenger.
  • single-focal lens system 201 is effective as a lens system of the imaging device such as the sensing camera.
  • a lens element having substantially no power may be added as appropriate to any of the single-focal lens systems according to the first to third exemplary embodiments.
  • the lens elements having aspherical shapes in the single-focal lens systems according to the first to third exemplary embodiments may be formed by polishing or molding, for example. Further, each of the lens elements may be formed by a so-called replicated lens (a hybrid lens) in which an aspherical coating is formed on a surface of a spherical lens.
  • any one of the single-focal lens systems according to the first to third exemplary embodiments is applied to camera 100 configuring the imaging device serving as the sensing camera that is disposed inside vehicle 500 and detects distances to parts of the driver and the passenger has been described, but the present disclosure is not limited to this example.
  • Camera 100 having the single-focal lens system according to the present disclosure may be applied to a sensing camera that is attached to, for example, a lower part of a side mirror (particularly, on a side opposite to the driver) of vehicle 500 and senses an object present below.
  • the driver can securely recognize a person or an object present in a blind area, and can perform an avoiding operation, for example.
  • safety when operating, for example, an automobile can further be improved.
  • camera 100 mounted on the vehicle has been described as an example of the imaging device on which single-focal lens system 201 according to any one of the first to third exemplary embodiments is mounted, but the present disclosure is not limited to this example.
  • camera 100 may be embedded into image display apparatus 600 serving as an example of a moving body that moves together with an operation of a person.
  • image display apparatus 600 detects distances to parts such as an arm of a person wearing image display apparatus 600 through camera 100 with a wide angle of view (e.g., 100 degrees). Controller 300 then processes information including the detected distances.
  • the person wearing image display apparatus 600 can acquire experience with more reality, such as grasping something.
  • the lengths in the tables are all in the unit of “mm”, and the angles of view are all in the unit of “°”.
  • the expression “angle of view” in the tables represents a diagonal half angle of view.
  • r is a radius of curvature
  • d is a distance between surfaces
  • nd is a refractive index at the d-line
  • vd is the Abbe number at the d-line
  • n940 nm is a refractive index at a wavelength of 940 nm.
  • the surfaces marked with * are aspherical.
  • the aspherical shape is defined by the following equation.
  • Z is a distance from a point on the aspherical surface having height h from the optical axis to a tangential plane at a peak of the aspherical surface
  • h is a height from the optical axis
  • r is a radius of curvature at the peak
  • ⁇ is a conic constant
  • An is an aspherical coefficient of n-th order.
  • FIGS. 2, 4, and 6 are longitudinal aberration diagrams of single-focal lens systems in the infinity focusing state according to the first to third numerical examples corresponding to the first to third exemplary embodiments, respectively.
  • SA spherical aberration
  • AST astigmatism
  • DIS distortion
  • a vertical axis indicates an F number (denoted by “F”)
  • a solid line indicates a characteristic with respect to a wavelength of 940 nm
  • a short broken line indicates a characteristic with respect to a wavelength of 960 nm
  • a long broken line indicates a characteristic with respect to a wavelength of 950 nm
  • an alternate long and short dash line indicates a characteristic with respect to a wavelength of 930 nm.
  • the vertical axis indicates an imaged height
  • the solid line indicates a characteristic with respect to a sagittal plane (denoted by “s”)
  • the broken line indicates a characteristic with respect to a meridional plane (denoted by “m”).
  • w represents a half angle of view.
  • the vertical axis indicates an imaged height
  • w represents a half angle of view.
  • the first numerical example of the single-focal lens system corresponding to the first exemplary embodiment in FIG. 1 will be described below. Specifically, as the first numerical example of the single-focal lens system, surface data is indicated in (Table 1), aspherical data is indicated in (Table 2), various pieces of data are indicated in (Table 3), and single lens data is indicated in (Table 4).
  • the third numerical example of the single-focal lens system corresponding to the third exemplary embodiment in FIG. 5 will be described below. Specifically, as the third numerical example of the single-focal lens system, surface data is indicated in (Table 9), aspherical data is indicated in (Table 10), various pieces of data are indicated in (Table 11), and single lens data is indicated in (Table 12).
  • the single-focal lens system of any one of the first to third exemplary embodiments is specifically implemented in the first to third numerical examples, respectively.
  • Table 13 illustrates values corresponding to the above conditions (1) to (6) in each numerical example.
  • the single-focal lens system that is excellent in various aberrations
  • the imaging device having the single-focal lens system and the moving body having the imaging device can be provided.
  • the single-focal lens system of the present disclosure can be applied to a digital still camera, a digital video camera, a camera of a cellular phone, a camera of a personal digital assistance (PDA), an on-vehicle camera, a sensing camera for measuring a distance to a subject, a surveillance camera, and a Web camera.
  • the present disclosure is suitable for a camera that requires a wide angle lens, such as the on-vehicle camera or the surveillance camera.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
US16/483,187 2017-04-14 2018-02-27 Single-focal lens system, imaging device having single-focal lens system, and moving body having imaging device Active 2038-07-27 US11029498B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2017080186 2017-04-14
JP2017-080186 2017-04-14
JPJP2017-080186 2017-04-14
PCT/JP2018/007353 WO2018190014A1 (fr) 2017-04-14 2018-02-27 Système de lentille monofocale, dispositif d'imagerie ayant un système de lentille monofocale, et corps mobile ayant un dispositif d'imagerie

Publications (2)

Publication Number Publication Date
US20190361207A1 US20190361207A1 (en) 2019-11-28
US11029498B2 true US11029498B2 (en) 2021-06-08

Family

ID=63793288

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/483,187 Active 2038-07-27 US11029498B2 (en) 2017-04-14 2018-02-27 Single-focal lens system, imaging device having single-focal lens system, and moving body having imaging device

Country Status (4)

Country Link
US (1) US11029498B2 (fr)
EP (1) EP3611547B1 (fr)
JP (1) JP6748856B2 (fr)
WO (1) WO2018190014A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110609379B (zh) * 2019-10-29 2021-06-25 长春理工大学 双通道共透镜式光学系统
CN110716289B (zh) * 2019-12-12 2020-03-31 江西联创电子有限公司 光学成像镜头
CN113376800B (zh) * 2021-06-04 2022-09-23 江西凤凰光学科技有限公司 一种宽工作距大光圈广角tof镜头
CN116047709B (zh) * 2021-10-28 2025-12-09 宁波舜宇车载光学技术有限公司 光学镜头和电子设备
JP7805830B2 (ja) * 2022-03-17 2026-01-26 キヤノン株式会社 光学系及びそれを備える撮像装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003307674A (ja) 2002-04-18 2003-10-31 Kyocera Corp 超広角レンズ
JP2005227426A (ja) 2004-02-12 2005-08-25 Nagano Kogaku Kenkyusho:Kk 広角レンズ
CN101261354A (zh) 2007-03-06 2008-09-10 扬明光学股份有限公司 广角镜头
JP2009063877A (ja) 2007-09-07 2009-03-26 Nidec Nissin Corp 超広角レンズ
JP2010008496A (ja) 2008-06-24 2010-01-14 Panasonic Corp 広角レンズ、照明光学系、面発光装置
US20100254025A1 (en) 2009-04-03 2010-10-07 Hayato Yoshida Wide-angle lens and image pickup apparatus
US20120069140A1 (en) 2010-09-20 2012-03-22 Largan Precision Co., Ltd. Wide-angle imaging lens assembly
US20130128369A1 (en) 2011-11-22 2013-05-23 Samsung Electro-Mechanics Co., Ltd. Super wide angle lens module
JP2016038574A (ja) 2014-08-07 2016-03-22 ナルックス株式会社 撮像光学系

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003307674A (ja) 2002-04-18 2003-10-31 Kyocera Corp 超広角レンズ
JP2005227426A (ja) 2004-02-12 2005-08-25 Nagano Kogaku Kenkyusho:Kk 広角レンズ
CN101261354A (zh) 2007-03-06 2008-09-10 扬明光学股份有限公司 广角镜头
JP2009063877A (ja) 2007-09-07 2009-03-26 Nidec Nissin Corp 超広角レンズ
US20100188757A1 (en) 2007-09-07 2010-07-29 Nidec Nissin Corporation Super-wide angle lens
JP2010008496A (ja) 2008-06-24 2010-01-14 Panasonic Corp 広角レンズ、照明光学系、面発光装置
US20100254025A1 (en) 2009-04-03 2010-10-07 Hayato Yoshida Wide-angle lens and image pickup apparatus
JP2010243711A (ja) 2009-04-03 2010-10-28 Ricoh Co Ltd 広角レンズ及び撮像装置
US20120069140A1 (en) 2010-09-20 2012-03-22 Largan Precision Co., Ltd. Wide-angle imaging lens assembly
US20130128369A1 (en) 2011-11-22 2013-05-23 Samsung Electro-Mechanics Co., Ltd. Super wide angle lens module
JP2016038574A (ja) 2014-08-07 2016-03-22 ナルックス株式会社 撮像光学系
US20160320688A1 (en) 2014-08-07 2016-11-03 Nalux Co., Ltd. Optical imaging system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Search Report dated May 22, 2018 in corresponding International Application No. PCT/JP2018/007353.

Also Published As

Publication number Publication date
WO2018190014A1 (fr) 2018-10-18
EP3611547A1 (fr) 2020-02-19
JPWO2018190014A1 (ja) 2019-11-21
US20190361207A1 (en) 2019-11-28
JP6748856B2 (ja) 2020-09-02
EP3611547B1 (fr) 2022-12-28
EP3611547A4 (fr) 2020-04-08

Similar Documents

Publication Publication Date Title
US11029498B2 (en) Single-focal lens system, imaging device having single-focal lens system, and moving body having imaging device
US11385445B2 (en) Single-focus lens system and camera
CN108508573B (zh) 摄像镜头
US9488806B2 (en) Photographic lens optical system
US12181645B2 (en) Infrared optical imaging lens, camera module and driving monitor system
EP2392958B1 (fr) Lentille de capture d'images et appareil de capture d'images
JP6985410B2 (ja) 撮像レンズ系及び撮像装置
KR101671451B1 (ko) 촬영 렌즈 광학계
US11320630B2 (en) Lens system, interchangeable lens device, and camera system
EP3465314B1 (fr) Système optique d'imagerie et appareil d'imagerie
US20180024320A1 (en) Imaging lens and imaging apparatus
US20080266679A1 (en) Imaging lens
JP2011145665A (ja) 広角レンズ及び広角レンズを搭載するシステム
US20230408796A1 (en) Optical system, image pickup apparatus, on-board system, and moving apparatus
US20150177487A1 (en) Photographic Lens Optical System
US9256051B2 (en) Photographic lens optical system
CN113625430A (zh) 光学系统、取像模组、电子设备及载具
US12535658B2 (en) Optical system and camera module comprising same
CN210626766U (zh) 光学系统、摄像模组及汽车
EP4170408B1 (fr) Objectif d'imagerie optique
US20260126620A1 (en) Optical system and camera module comprising same
JP2026057933A (ja) 撮像レンズ系及びこれを備えるカメラモジュール、撮像装置、車載システム、移動体
WO2025028419A1 (fr) Système de lentille d'imagerie, module de caméra, système monté sur véhicule et objet mobile
CN112578531A (zh) 光学系统、摄像模组及汽车

Legal Events

Date Code Title Description
FEPP Fee payment procedure

Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

AS Assignment

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IWASHITA, TSUTOMU;REEL/FRAME:051364/0203

Effective date: 20190710

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:IWASHITA, TSUTOMU;REEL/FRAME:051364/0203

Effective date: 20190710

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: AWAITING TC RESP., ISSUE FEE NOT PAID

STPP Information on status: patent application and granting procedure in general

Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT RECEIVED

STPP Information on status: patent application and granting procedure in general

Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4